EAGER: An Exploratory Study Toward Robust Free Space Optical Networks

自由空间光学（FSO）提供了一种经济高效、免许可、高带宽和远程解决方案，以满足对无线网络容量和可扩展性不断增长的需求。该项目旨在从网络和跨层优化的角度开发健壮的FSO网络技术。各种网络动态将用以下方法处理。(i)对于大时间尺度的动力学，将根据代数连通性的概念研究网络规划和拓扑优化。对于中期动态，将发展有效的负载平衡和自适应多路径路由。（iii）对于小时间尺度动力学，将研究信道估计，以实现速率适应和最佳接收器设计。波长分集也将被用于分集-复用的权衡。如果成功，该项目将实现具有千兆位速率的可扩展无线接入网络，以适应预计的无线数据增长。项目成果将被传播并纳入奥本大学无线工程课程。pi将努力让REU的学生参与进来，并参与奥本？为K-12学生提供外展服务。pi与HBCU在研究、课程和招收少数民族研究生方面有合作。鉴于无线数据的爆炸性增长，这是一个及时的项目。由于缺乏公共领域的测量数据和本研究采用的新颖方法，本项目具有高风险。这个项目的回报也很高。如果成功，它将带来高速率、长距离和可扩展的无线接入网络急需的技术。

Free Space Optics (FSO) provide a cost-effective, license-free, high-bandwidth and long-range solution to meet the escalating demand for wireless network capacity and scalability. This project aims to develop technologies for robust FSO networks from the network and cross-layer optimization perspective. Various network dynamics will be addressed with the following approaches. (i) For dynamics at large timescales, network planning and topology optimization will be investigated based on the concept of algebraic connectivity. (ii) For mid-timescale dynamics, effective load balancing and adaptive multipath routing will be developed. (iii) For small timescale dynamics, channel estimation will be investigated to enable rate adaptation and optimal receiver design. Wavelength diversity will also be exploited for the diversity-multiplexing tradeoff.If successful, this project will enable scalable wireless access networks with multi-gigabit rates, to accommodate the predicted increase in wireless data. Project outcomes will be disseminated and incorporated into the Auburn University Wireless Engineering curriculum. The PIs will strive to involve REU students, and to participate in Auburn?s TIGERs Camp for outreach to K-12 students. The PIs have collaborations with an HBCU on research, curriculum, and recruiting minority graduate students.This is a timely project given the imminent explosive increase in wireless data. This project is of high risk, due to the lack of measurement data in the public domain and the novel approach taken in this research. This project is also of high payoff. If successful, it can bring about the much needed technologies for high rate, long distance, and scalable wireless access networks.